/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.io.solr;



import com.bff.gaia.unified.sdk.io.solr.SolrIO.ConnectionConfiguration;

import org.apache.solr.client.solrj.SolrClient;

import org.apache.solr.client.solrj.SolrRequest;

import org.apache.solr.client.solrj.SolrResponse;

import org.apache.solr.client.solrj.SolrServerException;

import org.apache.solr.client.solrj.impl.CloudSolrClient;

import org.apache.solr.client.solrj.request.CollectionAdminRequest;

import org.apache.solr.client.solrj.request.CoreAdminRequest;

import org.apache.solr.client.solrj.request.QueryRequest;

import org.apache.solr.client.solrj.response.CoreAdminResponse;

import org.apache.solr.client.solrj.response.QueryResponse;

import org.apache.solr.common.cloud.ClusterState;

import org.apache.solr.common.params.SolrParams;



import java.io.Closeable;

import java.io.IOException;



import static com.bff.gaia.unified.vendor.guava.com.google.common.base.Preconditions.checkArgument;



/**

 * Client for interact with Solr.

 *

 * @param <ClientT> type of SolrClient

 */

class AuthorizedSolrClient<ClientT extends SolrClient> implements Closeable {

  private final ClientT solrClient;

  private final String username;

  private final String password;



  AuthorizedSolrClient(ClientT solrClient, ConnectionConfiguration configuration) {

    checkArgument(solrClient != null, "solrClient can not be null");

    checkArgument(configuration != null, "configuration can not be null");

    this.solrClient = solrClient;

    this.username = configuration.getUsername();

    this.password = configuration.getPassword();

  }



  QueryResponse query(String collection, SolrParams solrParams)

      throws IOException, SolrServerException {

    QueryRequest query = new QueryRequest(solrParams);

    return process(collection, query);

  }



  <ResponseT extends SolrResponse> ResponseT process(

      String collection, SolrRequest<ResponseT> request) throws IOException, SolrServerException {

    request.setBasicAuthCredentials(username, password);

    return request.process(solrClient, collection);

  }



  CoreAdminResponse process(CoreAdminRequest request) throws IOException, SolrServerException {

    return process(null, request);

  }



  SolrResponse process(CollectionAdminRequest request) throws IOException, SolrServerException {

    return process(null, request);

  }



  static ClusterState getClusterState(AuthorizedSolrClient<CloudSolrClient> authorizedSolrClient) {

    authorizedSolrClient.solrClient.connect();

    return authorizedSolrClient.solrClient.getZkStateReader().getClusterState();

  }



  @Override

  public void close() throws IOException {

    solrClient.close();

  }

}